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Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Reactive Perforating Collagenosis?

…forating” ones, namely, elastosis perforans serpiginosa, perforating folliculitis, and reactive perforating collagenosis, are completely unrelated and different from one another; therefore, they should not be grouped together any more than the…

Histologic Diagnosis of Inflammatory Skin Diseases

Reactive perforating collagenosis

Reactive perforating collagenosis Presentation stereotypical Age and sex Any age, both sexes Distribution of lesions Asymmetric at sites of trauma; sometimes symmetrical Arrangement of lesions May be linear Individual lesions Ulcerated papules toppe…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Perforating Diseases?

…a major role in the basic pathologic mechanism. These include perforating granuloma annulare, perforating folliculitis, elastosis perforans serpiginosa and reactive perforating collagenosis.” Mehregan A. Perforating dermatoses: a clinicopatho…

Therapeutic Strategies in Dermatology

Syphilis (Lues): Overview

Overview The treatment of syphilis is based on the duration of infection and the organ systems involved. Five groups can be distinguished: primary, secondary, or early syphilis of less than 1 year’s duration; infection of indeterminate length,…

Therapeutic Strategies in Dermatology

Erythema Annulare Centrifugum: Overview

Gyrate Erythemas, Figurate Erythemas, and Migratory Erythemas Gyrate erythemas are reactive processes. The therapeutic strategy is to determine and treat the underlying cause, and the cutaneous reaction is then cured. Underlying malignancy; dermatop…

Therapeutic Strategies in Dermatology

Erythema Nodosum: Overview

Overview Erythema nodosum is a reactive inflammatory septal panniculitis produced by multiple agents and underlying conditions. The most important consideration in the management of erythema nodosum is to determine and treat the cause. In children,…

Therapeutic Strategies in Dermatology

Syphilis (Lues): Key Points

Key Points The treatment of syphilis is based on the duration of infection and the organ systems involved. Five subtypes of syphilis can be distinguished: primary, secondary, or early syphilis of less than 1 year’s duration; infection of inde…

Histologic Diagnosis of Inflammatory Skin Diseases

"Perforating folliculitis" of chronic renal disease

Perforating folliculitis” of chronic renal disease Comment This condition, essentially a suppurative infundibulitis, is vexing to patients practically and to physicians conceptually. It is troubling to patients because the suppurative i…

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